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All Journal Buletin Peternakan JURNAL KIMIA SAINS DAN APLIKASI Jurnal Ilmu Dasar Jurnal Sains Materi Indonesia Sains Tanah Journal of Mathematical and Fundamental Sciences CHEMPUBLISH JOURNAL Science and Technology Indonesia Jurnal Penelitian Pendidikan IPA (JPPIPA) Al-Kimia Jurnal Pengabdian Pada Masyarakat Indonesian Journal of Chemistry JMM (Jurnal Masyarakat Mandiri) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Pengabdian Magister Pendidikan IPA Molekul: Jurnal Ilmiah Kimia Indonesian Physical Review Jurnal Gema Ngabdi Acta Chimica Asiana Jurnal Abdi Insani Rengganis Jurnal Pengabdian Masyarakat Jurnal Pijar MIPA Jurnal Pepadu Jurnal Pendidikan dan Pengabdian Masyarakat Jurnal Pengabdian Inovasi Masyarakat Indonesia BIO-CONS: Jurnal Biologi dan Konservasi Molekul: Jurnal Ilmiah Kimia Jurnal Sains Materi Indonesia Al Hayat: Jurnal Pengabdian Masyarakat Jurnal Ilmiah Multidisiplin
Dhony Hermanto
Department Of Chemistry, Faculty Of MIPA, University Of Mataram
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Veterinary Other

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Synthesis of Alginate-Chitosan Polyelectrolyte Complex (PEC) Membrane and Its Physical-Mechanical Properties Dhony Hermanto; Mudasir Mudasir; Dwi Siswanta; Bambang Kuswandi
Jurnal Kimia Sains dan Aplikasi Vol 22, No 1 (2019): volume 22 Issue 1 Year 2019
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2514.819 KB) | DOI: 10.14710/jksa.22.1.11-16

Abstract

Synthesis of alginate-chitosan polyelectrolyte membrane and the determination of the physical-mechanical properties were carried out. Alginate-chitosan polyelectrolyte complex membrane can be made by mixing hydrosol alginate and chitosan hydrosol with a ratio of 1: 1 at pH 5.28. Membranes of alginate-chitosan polyelectrolyte complexes produced have physical-mechanical properties including load, elongation and elasticity, water absorption and resistance better than the constituent polymers. The results of FTIR spectroscopy analysis showed that there was an electrostatic interaction between alginate and chitosan through protonated amine groups of chitosan and carboxylic groups from alginate. Surface analyses by SEM showed that morphology of alginate-chitosan polyelectrolyte complex membrane was different with single membrane morphology
Conducting Matrices of the Poly(-O-Toluidine, PTOL) Film for Immobilizing Uricase Dhony Hermanto; Nurul Ismillayli; Ulul Khairi Zuryati; Siti Raudhatul Kamali
Molekul Vol 17 No 2 (2022)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2022.17.2.5851

Abstract

Polyaniline, PANI as conducting polymer has been used as enzyme immobilization matrix in biosensors due to its excellent stability and electrochromic effects, conductivity, and redox reversibility. However, at pH above 4, the electron transfer ability and redox activity decrease, henceit is necessary to modify the PANI structure to increase the PANI pH range. In this study, the PANI derivative, the poly(-o-toluidine, PTOL) film was produced for the uricase immobilization matrix. This study aimed to develop a supporting material that maintains catalytic activity uricase with a facile and inexpensive procedure. The PTOL was prepared by using the chemical oxidative polymerization technique with ammonium persulfate (dissolved in 1.0 M HCl) as an oxidizing agent. The FTIR spectra confirmed the success of PTOL formation by the appearance of its characteristic peaks. The UV-Vis spectra indicated that PTOL was in an emeraldine state with a semi-crystalline structure that was shown by its XRD pattern. While, SEM analysis described that the PTOL film was uniform with some granular aggregation in its surface morphology, but there is no holes or porosity were found. The use of PTOL film as a uricase matrix could maintain the uricase activity against the substrate (uric acid, UA) with excellent analytical characteristics. Therefore, PTOL film could be used as conducting matrices for immobilizing enzymes (e.g. biosensors).
Edukasi Masyarakat Pesisir untuk Mengatasi Pencemaran Lingkungan Berbasis Nanoteknologi Ramah Lingkungan Saprini Hamdiani; Mamika Ujianita Romdhini; Siti Raudhatul Kamali; Nurul Ismillayli; Dhony Hermanto; Ulul Khairi Zuryati; Ruru Honiar; Lely Kurniawati
Jurnal Pengabdian Inovasi Masyarakat Indonesia Vol. 2 No. 2 (2023): Edisi Agustus
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpimi.v2i2.3239

Abstract

Pengabdian ini bertujuan untuk meningkatkan pemahaman masyarakat pesisir Pulau Lombok terhadap cara mengatasi pencemaran lingkungan berbasis konsep nanoteknologi yang ramah lingkungan. Edukasi yang dilakukan melalui sesi ceramah dan tanya jawab dengan metode Focus Group Discussion (FGD). Lokasi pengabdian yang dipilih adalah di Pantai Gading, Kota Mataram, Provinsi Nusa Tenggara Barat. Pantai ini merupakan salah satu titik wisata favorit masyarakat Lombok, terutama untuk menikmati keindahan sunset dan hidangan lautnya yang lezat. Aktivitas pariwisata yang bergeliat menyebabkan pencemaran lingkungan akibat sampah yang dihasilkan. Keadaan ini harus segera ditanggulangi karena akan berdampak terhadap kunjungan wisatawan ke Pantai Gading. Salah satu tahap awal yang dapat dilakukan untuk mengurangi pencemaran, adalah mengedukasi warga masyarakat lokal tentang pentingnya penerapan nanoteknologi dalam kehidupan sehari-hari. Proses edukasi dilakukan melalui program pengabdian masyarakat dengan turun langsung ke lapangan memberikan pemahaman kepada masyarakat. Kegiatan ini diikuti oleh sekitar 25 orang peserta, dan berhasil meningkatkan pemahaman masyarakat tentang konsep pengelolaan limbah berbasis nanoteknologi, rata-rata sebanyak 81.25%.
Pelatihan lilin aromaterapi berbasis minyak biji kelor pada ibu-ibu pkk desa sigerongan lombok barat Seno Handayani, Sri; Ryantin Gunawan, Erin; Suhendra, Dedy; Murniati; Hermanto, Dhony
Rengganis Jurnal Pengabdian Masyarakat Vol. 3 No. 2 (2023): November 2023
Publisher : Pendidikan Matematika, FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/rengganis.v3i2.371

Abstract

Pemberdayaan masyarakat merupakan salah satu upaya untuk membangun kemampuan yang dimiliki oleh masyarakat. Hal ini dapat dilakukan dengan cara mendorong, memotivasi, membangkitkan kesadaran akan potensi yang dimiliki dan berupaya untuk mengembangkan potensi itu menjadi tindakan nyata. Kegiatan pengabdian dilaksanakan oleh Tim Pengabdian dosen dan mahasiswa Program Studi Kimia Universitas Mataram. Kegiatan ini bertujuan untuk: 1)meningkatkan pengetahuan ibu-ibu rumah tangga yang tergabung dalam PKK Desa Segerongan Lombok Barat tentang manfaat dan potensi tanaman kelor yang banyak dijumpai disekitar lingkungan mereka, (2) memberikan alternatif kegiatan produktif bagi ibu-ibu rumah tangga yang sekaligus dapat meningkatkan income rumah tangga mereka (3) meningkatkan motivasi dan kreativitas ibu-ibu rumah tangga untuk menciptakan lapangan kerja mandiri sebagai usaha membantu meningkatkan perekonomian keluarga. Kegiatan dilaksanakan melalui metode ceramah, diskusi tentang ekstraksi dan manfaat minyak biji kelor serta pelatihan pembuatan lilin aromaterapi dari minyak biji kelor. Selama kegiatan berlangsung peserta sangat antusias dan berharap kegiatan yang dilaksanakan oleh Tim Pengabdian dapat dilaksanakan secara rutin.
Humic Acid Isolation from Batujai Dam Lombok Tengah-NTB and its Potential as Reductive–Biosorbent Au(III) in The Batch System Ismillayli, Nurul; Hermanto, Dhony
Jurnal ILMU DASAR Vol 21 No 1 (2020)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (120.407 KB) | DOI: 10.19184/jid.v21i1.8793

Abstract

The Study of Au(III) ions adsorption by humic acid in batch system has been done. Humic acid was isolated from Batujai Dam Lombok Tengah 0.1 M NaOH and continued with 0.1 M HCl/0.3 M HF washing to dissolve silica. Functional groups of isolated humic acid was investigated by FTIR Spectroscopy and the adsorption process was studied by XRD and SEM analyses. It has been found that humic acid contained carboxylic, phenols, alcoholic, ether, amines functional groups, aliphatic hydrocarbon and aromatic ring. XRD and SEM data showed that humic acid did not only adsorp Au(III) ions but also reduce them to gold particles. Therefore, humic acid has the potential as reductive-biosorbent for Au(III) in batch system. Keywords: humic acid, reductive-biosorbent, Au(III) ions.
Edukasi Manfaat Minyak Ikan Sebagai Upaya Pencegahan Stunting Masyarakat Desa Kuripan Kabupaten Lombok Barat, Nusa Tenggara Barat: (Education on the Benefits of Fish Oil as an Effort to Prevent Stunting in the Community of Kuripan Village Lombok Barat, Nusa Tenggara Barat) Murniati; Dedy Suhendra; Erin Ryantin Gunawan; Dhony Hermanto; Sri Seno Handayani; Alya Hadranita Utami; Baiq Anggi Yustika Leni; Amida Rischia Ulfa
AL HAYAT: Jurnal Pengabdian Masyarakat Vol. 2 No. 2 (2024): Juni 2024
Publisher : Prodi Tadris IPA Biologi UIN Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62588/ahjpm.2024.v2i2.0174

Abstract

Stunting is an important problem currently facing Indonesia. The prevalence rate of stunting is still in the high category when compared with WHO standards. NTB Province is one of the areas accelerating stunting reduction, including Kuripan District, West Lombok. Nutrition education programs for mothers are very important to tackle the problem of stunting. Nutrients play an important role in children's growth and development, such as fatty acids. Fatty acids are very good to consume for intelligence, so they can reduce stunting rates. One source of fatty acids is fish oil. The aim of this PkM activity is to provide education to mothers about stunting and how to prevent it, as well as the benefits of fish oil as a nutrient that plays an important role in efforts to prevent stunting. This series of PkM activities are direct outreach activities to the community, in this case the object of the PkM activity is the women reciting the TPQ Miftahul Ulum recitation in Kuripan Village, followed by the activity of distributing fish oil and installing educational posters about stunting and fish oil. The PkM activities ran smoothly and the mothers were very enthusiastic and eager to take part in the PkM activities. This activity provides a comprehensive understanding of stunting and the role of fish oil as an effective solution to prevent and overcome the problem of stunting in society
PELATIHAN TEKNIK EKSTRAKSI MINYAK SEDERHANA KEPADA UMKM DI PURA LINGSAR KABUPATEN LOMBOK BARAT Hamdiani, Saprini; Hermanto, Dhony; Sudirman, Sudirman; Sumarlan, Iwan; Kamali, Siti Raudhatul; Ismillayli, Nurul; Sari, Ayu Purnama; Iriando, Mahadi Muhammad Gunadharma
Jurnal Pepadu Vol 5 No 3 (2024): Jurnal PEPADU
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/pepadu.v5i3.5879

Abstract

Di Kecamatan Lingsar Kabupaten Lombok Barat terdapat UMKM yang bergerak di bidang produksi Minyak Nagasari. Minyak ini diperoleh dari Tanaman Nagasari yang banyak tumbuh dikawasan Pura Lingsar. Minyak ini memiliki khasiat untuk mengobati penyakit gatal-gatal, sehingga dijadikan oleh-oleh bagi wisatawan yang berkunjung ke tempat wisata tersebut. Namun kualitas minyak masih rendah dan pengemasan masih sangat tradisional. Oleh karena itu, kegiatan ini bertujuan untuk meningkatkan pemahaman para anggota UMKM tentang teknik sederhana ekstraksi minyak dan pengemasan produk. Kegiatan pengabdian dilaksanakan pada tanggal 14 Mei 2024 melalui sosialisasi dan pelatihan dengan metode focus group discussion (FGD). Terdapat 5 kelompok yang masing-masing beranggotakan 3 orang. Tiap kelompok diberi pemahaman dan praktek teknik ekstraksi yang baik. Setelah pelaksanaan pengabdian, pemahaman anggota UMKM meningkat sebanyak 81.25%. Selain pelatihan, para anggota UMKM diberikan pemahaman tentang penggunaan kemasan yang baik akan berpengaruh terhadap keinginan konsumen untuk membeli. Pengemasan yang baik terhadap minyak Nagasari selama periode 3 bulan, Mei-Juni 2024, meningkatkan omzet penjualan Minyak Nagasari sebanyak 37.67%. Kegiatan ini telah meningkatkan pemahaman dan perekonomian para anggota UMKM Minyak Nagasari di Pura Lingsar.
EDUKASI KIMIA DAN MATEMATIKA UNTUK MASYARAKAT PESISIR SEBAGAI LANGKAH AWAL DALAM MENGATASI PENCEMARAN LINGKUNGAN Kamali, Siti Raudhatul; Hermanto, Dhony; Romdhini, Mamika Ujianita; Hamdiani, Saprini; Ismillayli, Nurul; Kurniawati, Lely; Wirahadi, Ahmad; Mariana, Baiq
Jurnal Pendidikan dan Pengabdian Masyarakat Vol. 6 No. 4 (2023): November
Publisher : FKIP Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppm.v6i4.5992

Abstract

Pencemaran limbah di kawasan pesisir adalah tantangan serius yang memerlukan pemahaman mendalam tentang sumber pencemaran, dampaknya, dan solusi yang berkelanjutan. Kegiatan pengabdian ini bertujuan untuk mengatasi masalah ini melalui penerapan pendekatan berbasis kimia dan matematika sebagai media edukasi yang lebih efektif kepada masyarakat pesisir, khususnya masyarakat Pantai Gading yang menjadi mitra kegiatan pengabdian. Pada tahap persiapan, survey lingkungan dilakukan untuk mengidentifikasi sumber-sumber utama pencemaran limbah di wilayah tersebut dan mengetahui pemahaman awal masyarakat tentang pencemaran limbah. Hasil survey ini menjadi dasar untuk merancang program edukasi yang sesuai. Selanjutnya, program edukasi kimia dan matematika dikembangkan dan disampaikan kepada masyarakat pesisir menggunakan metode Focus Group Discussion (FGD) yang melibatkan 18 orang peserta. Hasil dari kegiatan menunjukkan perubahan signifikan dalam pemahaman masyarakat tentang penerapan edukasi kimia dan matematika dalam mengatasi pencemaran limbah serta peningkatan kesadaran mereka dalam mengambil tindakan yang konkret.
Adsorpsi Ion Logam Cu(II) Menggunakan Membran Selulosa dari Batang Pisang Termodifikasi Polivinil Alkohol (PVA) Yuliasari, Rina; Hermanto, Dhony; Murniati, Murniati
Jurnal Ilmiah Multidisipin Vol. 2 No. 10 (2024): Jurnal Ilmiah Multidisiplin, Oktober 2024
Publisher : Lumbung Pare Cendekia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Logam Cu(II) merupakan jenis logam berat yang banyak ditemukan sebagai limbah dan bersifat racun jika keberadaannya berlebih, baik itu pada lingkungan maupun pada organisme. Metode adsorpsi dapat digunakan untuk mengatasi keberadaan logam Cu(II) yang berlebih. Penelitian ini dilakukan dengan tujuan untuk mengkarakterisasi membran selulosa termodifikasi PVA, menentukan kapasitas adsorpsi, permodelan isoterm, dan kinetika adsorpsi terhadap logam Cu(II). Metode isolasi selulosa yang digunakan pada penelitian ini yaitu delignifikasi (pelepasan lignin) menggunakan NaOH 10 % dan bleaching menggunakan H2O2 30 %. Membran selulosa-PVA dibuat dengan komposisi 1:2, tanpa menggunakan agent/crosslinker pada pH 8. Hasil penelitian menunjukkan bahwa karakteristik membran yang dihasilkan memiliki ketebalan 0,172 mm, nilai uji swelling sebesar 105,54 %, uji kuat tarik 2,7629 MPa, dan elongasinya 48,08 %. Kapasitas adsorpsi membran selulosa-PVA pada kondisi optimum sebesar 47,67 mg/g dengan persen penyisihan 92 %. Permodelan isoterm mengikuti jenis permodelan Freundlich dengan nilai R2 sebesar 0,9057. Permodelan kinetika adsorpsi mengikuti permodelan pseudo orde II dengan nilai R2 sebesar 0,9978.
CHEMICAL DEGRADATION OF NAFION MEMBRANES UNDER PEMFC AS INVESTIGATED BY DFT METHOD Rochmad K. Sanjaya; Juliandri; Iman Rahayu; Nurul Ismillayli; Dhony Hermanto
Jurnal Sains Materi Indonesia Vol. 21 No. 2 (2020): Jurnal Sains dan Materi Indonesia
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

CHEMICAL DEGRADATION OF NAFION MEMBRANES UNDER PEMFC AS INVESTIGATED BY DFT METHOD. An exsitu method has been developed to performance of Nafion's membrane in PEMFC (Proton Electrolyt Membrane Fuel Cells), caused by the chemical degradation of ·OH and ∙H radicals. The change of the chemical structure occurring during the degradation were primarily calculated of the relative energy of reactions by DFT (Density Functional Theory) method approach in the Gaussian software. This study aims to determine whether DFT method with functional B3LYP, PBEPBE, and B3PW91 and base sets 6-311++G can be used in determining the relative energy of a reaction and knowing the difference in role between ·OH and ∙H in the degradation process of the main chain Nafion with the final group are -CF2H, -CF=CF2 and -COOH. The three functionalities applied showed that the ·OH radical has more role than the ∙H radical in the degradation process of the Nafion main chain. In the -CF2H group was shown the relative energy value of reaction 2 is lower than reaction 5, in the -CF=CF2 group was shown the relative energy value of reaction 8* is lower than reaction 11 and in the -COOH group the relative energ value of reaction 14 is lower than reaction 16. By knowing the relative energy of the Nafion main chain degradation reaction with a certain final group and the role of certain radical compounds in the degradation process, the DFT method with functional B3LYP, PBEPBE and B3PW91 and base sets 6-311++G can recommend various modifications of the Nafion as a fuel cell membrane, particularly in increasing of membrane performance.
Co-Authors Ahmad Wirahadi Ahmad Wirahadi Alya Hadranita Utami Amida Rischia Ulfa Apriani, Niza Yusnita Baiq Anggi Yustika Leni Baiq Handayani Rinuastuti Baiq Mariana Baiq Mariana Bambang Kuswandi Bambang Kuswandi Bambang Kuswandi Bambang Kuswandi Bela Azkiana Chen, Chang-Nan Datin An Nisa Sukmawati Dedi Suhendra Dedy Suhendra Dedy Suhendra Dina Asnawati Dwi Siswanta Dwi Siswanta Dwi Siswanta Erin Ryantin Gunawan Erin Ryantin Gunawan Erin Ryantin Gunawan Erin Ryantin Gunawan Erin Ryantin Gunawan, Erin Fahrurazi Fahrurazi Fahrurazi Fahrurazi Fahrurazi Fahrurazi Fahrurazi Fahrurazi Handa Muliasari I G. Ayu Sri Andayani I. G. A. Sri Andayani I. G. Ayu Sri Andayani Iman Rahayu Iman Rahayu Hidayati Soesanto Iriando, Mahadi Muhammad Gunadharma Iwan Sumarlan Juliandri Juliandri Juliandri Jurnal Pepadu Laili Mardiana Laili Mardiana Lalu Agung Nartiadi Lely kurniawati Lely Kurniawati Liliek Karnila Linda Marta Shofiyana Linda Marta Shofiyana Mamika Ujianita Romdhini Mamika Ujianita Romdhini, Mamika Ujianita Mariana, Baiq Marliadi Susanto Masyhuri, Aga Adi Mudasir Mudasir Mudasir Mudasir Mudasir Mudasir Mudasir Mudasir Muhammad Zakirrahman Murniati Murniati Murniati . Murniati Murniati Ni Kadek Intan Wulan Sinta Dewi Nindi Herdiyanti Nurlaela Nurlaela Nurul Ismillayli Prihatini, Putri Jauhar Qurnia Aini Rasyadan Taufiq Probojati Rina Kurnianingsih RINA KURNIANINGSIH Rochmad K Sanjaya Rochmad K. Sanjaya Rochmad Kris Sanjaya Rochmad Krissanjaya Rosita Wati Ruru Honiar Ruru Honiar Ruru Honiar Sanjaya, Rochmad K Saprini Hamdiani Saprizal Hadisaputra Saputri, Dinar Suksmayu Sari, Ayu Purnama savitri, Lisa Sawmi Jannaturrayyan Siti Raudhatul Kamali Siti Raudhatul Kamali Siti Raudhatul Kamali Soraya Aulia Sri Seno Handayani Sri Seno Handayani Sri Seno Handayani Sri Seno Handayani Sudirman Sudirman Surya Hadi TATI NURHAYATI Ulul Khairi Zuryati Ulul Khairi Zuryati Ulul Khairi Zuryati Ulul Khairi Zuryati Ulul Khairi Zuryati Ulul Khairi Zuryati Wirahadi, Ahmad Yuliasari, Rina